Home / 20,628,797.88-28,468,458.54-11,461,827

Finding the Fourth Proportional to 20,628,797.88, 28,468,458.54 and 11,461,827

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Solution

The fourth proportional to 20,628,797.88, 28,468,458.54 and 11,461,827 is: 15,817,719.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,628,797.88 : 28,468,458.54 = 11,461,827 : x
  2. Step 2: Convert to fraction form
    20,628,797.88/28,468,458.54 = 11,461,827/x
  3. Step 3: Cross multiply
    20,628,797.88x = 28,468,458.54 × 11,461,827
  4. Step 4: Simplify right side
    20,628,797.88x = 326,300,546,742,152.56
  5. Step 5: Solve for x
    x = 326,300,546,742,152.56/20,628,797.88
  6. Step 6: Final answer
    x = 15,817,719.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.